{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-46112",
  "modified": "2026-10-09T11:39:44Z",
  "upstream": [
    "CVE-2026-46112"
  ],
  "published": "2026-05-28T09:36:53Z",
  "summary": "RDMA/hns: Fix unlocked call to hns_roce_qp_remove()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix unlocked call to hns_roce_qp_remove()\n\nSashiko points out that hns_roce_qp_remove() requires the caller to hold\nlocks.  The error flow in hns_roce_create_qp_common() doesn't hold those\nlocks for the error unwind so it risks corrupting memory.\n\nGrab the same locks the other two callers use.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.175",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-46112"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1f0a3aa8b569d010316b427238222c5d899f9618"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b6296ff2475fc95ee6ea1b528c4b385302808186"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fb4ae739811d467409bd07d0e36cfd4140f3d26a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fcf6a832c0d5b2bc5398d6996c5570d3ee7993fb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1912f78798505dc9c637081bbddfbf1c22494c49"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/615d9d260c32bb678504ca96f29ae46f9d745155"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0c99acbc8b6c6dd526ae475a48ee1897b61072fb"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T13:16:28Z",
    "severity": {
      "source": "kernel CNA",
      "cvss_v3_score": 7.8,
      "cvss_v3_severity": "High",
      "scenario": "AV:L - The bug is reached through the local RDMA uverbs character device (ibv_create_qp), a control-plane operation; it cannot be triggered by a remote peer sending RDMA packets.\nAC:L - The attacker can reliably force the error-unwind path (e.g., a faulting ib_copy_to_udata output buffer) and controls both sides of the race by running concurrent QP create/destroy and CQ-poll operations on the same device/CQs.\nPR:L - Creating a QP requires access to the RDMA verbs device but no CAP/root; an unprivileged local user with RDMA access (common in HPC/cloud/container deployments) can reach the code.\nUI:N - The attacker triggers QP creation and the error path directly with no action required from any other user.\nS:U - Corruption stays within the kernel's own memory/security authority; no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - Unlocked list_del causes linked-list corruption that can be leveraged into use-after-free and arbitrary kernel-memory disclosure; per guidance memory corruption exploitable for info leak is High.\nI:H - Racing list_del/list_add writes attacker-influenced pointer values into neighbor nodes, a memory-corruption write primitive that can be escalated to control-flow hijack; High.\nA:H - List corruption and the resulting use-after-free reliably oops/panic the kernel, a full denial of service."
    }
  }
}